Home / 7,249.40-10,859.70-4,167.80

Finding the Fourth Proportional to 7,249.40, 10,859.70 and 4,167.80

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Solution

The fourth proportional to 7,249.40, 10,859.70 and 4,167.80 is: 6,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.40 : 10,859.70 = 4,167.80 : x
  2. Step 2: Convert to fraction form
    7,249.40/10,859.70 = 4,167.80/x
  3. Step 3: Cross multiply
    7,249.40x = 10,859.70 × 4,167.80
  4. Step 4: Simplify right side
    7,249.40x = 45,261,057.66
  5. Step 5: Solve for x
    x = 45,261,057.66/7,249.40
  6. Step 6: Final answer
    x = 6,243.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.